With the longest day of the year just passing on Wednesday, temperatures are sharply rising with an unusually early heat wave.

These are some foods that help you keep healthy during the hot summer days to come.

One of the most popular dishes during the summer is Samgyetang, chicken soup with ginseng, which is full of nutrients and protein that help boost the immune system. If added with various types of oriental medicine ingredients, it will boost energy and improve digestion to help get through sweltering summer days.